For WR, the revenue came from selling bulk rights to advertise at stations (46 per cent), glow signs (100 per cent), wall paintings (100 per cent), panel display (16 per cent) and rake paintings (17 per cent).

A senior railway official said, “Many avenues have been explored in the last one year to increase revenue from publicity.

“Media such as window panels of rakes and and jingles in the public address system significantly improved revenue last year.”

Another railway official said, “BMC has stopped the railways from advertising outside heritage buildings such as Churchgate station. However, BEST buses that stop right next to the station display advertisements. It remains unclear why BMC has such rules for the railways.”